Young devised an experiment to measure the wavelength of light
He got light from the sun and separated it into two beams by using a card.
He then used a mirror to direct the beam horizontally across the room.
The two beams were mirrored onto a screen.
As a result on the screen he saw a pattern of alternating dark and light the waves of light, beams, were interfering.
These waves were coherent because the waves that are the same add together to make a bigger wave.
Waves add and subtract.
Group 2:
Light as a wave
Light was shown through small whole in the window. Piece of paper split ray of light into two rays of light. When they hit the screen there was a pattern of light and dark. This was created the two waves interfered by adding and subtracting from each other. This proved that light was a wave.
Group 3:
Group 4:
Young’s Double Slit Experiment: The first thing that Young did was he put a pinhole through a window shutter and a beam of light came through. Then he put an index card horizontally through the beam and it split the beam in two. He put a screen in front of it and the pattern of the light projected on to the screen. The pattern was alternating light and dark beams. Some of the beams were smaller and some were bigger. Light is a wave because the pattern that was projecting on the screen was alternating light and dark beams. This shows that the light that is split into two are interfering with each other and making them become big and small depending on where each wave hits another.
Group 5:
Young’s Experiment:
Young’s set up his experiment by projecting light through a small hole. He uses a small card to split the one light stream into two different streams of light. The two streams are projected on a screen that shows alternating patterns of light and dark bands. Waves have the property of addition, meaning that when the peak (high point of a wave) hits another peak, the wave increases in size; this is coherent because it shows the wave pattern matching. Waves also have the property of subtraction; when a peak hits a trough (low point of a wave), they balance out to plateau. He saw both interference pattern properties in the light. Depending on how coherent the waves of light are, the band are changed from light to dark. Young concluded that light is a wave.
Group 6:
Light as a Particle
Young’s experiment was based on the idea that light is a wave.
directed sunlight through pinhole using a mirror
divided light using a card into 2 coherent beams of light
2 coherent light sources (sunlight)
projected the light onto a screen
saw a pattern of light and dark
Because he saw a pattern of light and dark, he concluded that light is a wave.
If two waves add, then they are coherent. If they subtract, then they interfere with each other.
Young’s Double Split Experiment
Group 2:
Light as a wave
Light was shown through small whole in the window. Piece of paper split ray of light into two rays of light. When they hit the screen there was a pattern of light and dark. This was created the two waves interfered by adding and subtracting from each other. This proved that light was a wave.
Group 3:
Group 4:
Young’s Double Slit Experiment:
The first thing that Young did was he put a pinhole through a window shutter and a beam of light came through. Then he put an index card horizontally through the beam and it split the beam in two. He put a screen in front of it and the pattern of the light projected on to the screen. The pattern was alternating light and dark beams. Some of the beams were smaller and some were bigger. Light is a wave because the pattern that was projecting on the screen was alternating light and dark beams. This shows that the light that is split into two are interfering with each other and making them become big and small depending on where each wave hits another.
Group 5:
Young’s Experiment:
Young’s set up his experiment by projecting light through a small hole. He uses a small card to split the one light stream into two different streams of light. The two streams are projected on a screen that shows alternating patterns of light and dark bands. Waves have the property of addition, meaning that when the peak (high point of a wave) hits another peak, the wave increases in size; this is coherent because it shows the wave pattern matching. Waves also have the property of subtraction; when a peak hits a trough (low point of a wave), they balance out to plateau. He saw both interference pattern properties in the light. Depending on how coherent the waves of light are, the band are changed from light to dark. Young concluded that light is a wave.
Group 6:
Light as a Particle
Young’s experiment was based on the idea that light is a wave.
- directed sunlight through pinhole using a mirror
- divided light using a card into 2 coherent beams of light
- 2 coherent light sources (sunlight)
- projected the light onto a screen
- saw a pattern of light and dark
Because he saw a pattern of light and dark, he concluded that light is a wave.If two waves add, then they are coherent. If they subtract, then they interfere with each other.